Query String

const variables = {
    keywords: 'Hello',
    limit: 1,
    page: 5
}


const qs = Object.keys(variables).reduce(
    (acc, key) => {
        // Special condition for pagination
        if (variables.page > 1 && variables.keywords !== '' || variables.keywords !== undefined || variables[key] === null ) {
            return '?' + 'keywords' + '=' + encodeURIComponent(variables.keywords) + '&' + key + '=' + encodeURIComponent(String(1))
        }

        if (variables[key] === null || variables[key] === undefined || variables[key] === '') {
            return acc
        }
        if (acc === '') {
            return '?' + key + '=' + encodeURIComponent(String(variables[key]))
        }

        return(
            acc + '&' + key + '=' + encodeURIComponent(String(variables[key]))
        )
    }, '')

qs